diff --git a/CPP/7zip/Compress/Balz/BalzRegister.cpp b/CPP/7zip/Compress/Balz/BalzRegister.cpp
index feafb1c9c..cd25192b7 100644
--- a/CPP/7zip/Compress/Balz/BalzRegister.cpp
+++ b/CPP/7zip/Compress/Balz/BalzRegister.cpp
@@ -208,7 +208,7 @@ class CM: public Encoder
 	Counter counter1[256][512];
 	Counter counter2[256][TAB_SIZE];
 
-	CM(void *in, void *out): Encoder(in, out){}
+	CM(void *in_, void *out_): Encoder(in_, out_){}
 
 	void Encode(int t, int c1)
 	{